Steam-superheater.



W. L. RILEY.

STEAM SUPERHEATER.

APPLICATION FILED SE02? 1909. 1,161,976.

RENEWED JUNE 28, I915.

a SHEETS-SHEET Patented Nov. 30, 1915.

WNU Z W. L. RILEY.

STEAM SUPERHEATER.

APPLICATION r1150 0112.21. 1909. RENEWED 111115 28, 1915.

Patented Nov. 30, 1915.

3 SHEETS-SHEET 2.

W. L. RFLEY.

STEAM SUPERHEATER.

APPucAHoN FILED DEC.27. I909. RENEWED JUNE 28.1915.

1,1615976, v Patented Nov. 30, 1915.

3 SHEETS-SHEET 3.

UNITED STATES WILLIS L. RILEY, or

PATENT oFFIoE.

ST. PAUL, MINNESOTA, ASSIGNOR TO LOCOMOTIVE SUPERHEATER COMPANY; A CORPORATION OF DELAWARE.

STEAM-SUPERHEATER.

Application filed December 27, 1909, Serial No. 53

To all whom' it may concern:

' Be it known that I, TVILLIs L. RILEY, a

' citizen of the United States, residing at St.

"introduction of a device of its kind which is less complicated, more eflicient, more. effective in operation and lessllable to dls 'order than prior devlces.

My invention takes the place o fia receiver I leading. from the dry pipe to the/steam chest of the cylinders thus occupying less space, leaving the front end of the holler 1n the Smoke chamber and. the/boiler tubes clear from obstruction andallowing a good draft on the fire and through said tubes. The main connections lead in a substantially di rect line from the [dry pipe or boiler to the steam chests and conducts the steam to and from the superheatertubes in the shortest path which is an advantageover previously constructed superheaters. These connections do not increase in size between their ends which is an advantage. 'The superheater tubes employed inflmy invention are also arranged so that if they break or leak any one of them can be removed without disturbing the others and anew tube inserted in place of the old one.

- In the constructions embodying my invention an important object in view which is attained is "to prevent or overcome doubling back in the course of the steam from the time itleavesthe boiler until it reaches the I ],,steam, ch ests except where it is exposed to the effective action'of' heat egressing through the boiler flues thus simplifying the construction and accomplishing thedesired re sults in the most etficient and eifective man- Another important object attained is to provide for expansion and contraction, of the parts due to heat and cold and movement of the parts due to excessive strains.

The, expense of maintaining-and installing my invention is very much less than with prior devices.

Tins apphcatlon 1s .an. 1mprovement on.

Specification of Letters Patent.

se being taken of the construction illustrated in p tente Nov. 30, 1915. 4,963. Renewed-mates; 1915. Serial m. 36,913.

the construction set forth in my application Serial No/%l7l,691, filed OfJanua ry; 190 9.

. In talic/accompanying drawings forming part 'this specification Figure 1 is a Side 1e "iron of a detail of a locomotive illusng m invention parts thereof being. shown in central longitudinal section; Fig. /2 "is a ff'ont elevation looking into the smoke chamber illustrating my invention; the view on the 11th day Fig. 1; Fig. 3 is a section of'the superfastening between the distributer and receiver parts; Fig. 5 is a front'elevation of the construction illustrated in Fig. 4; Fig. .6 is a sectionof Fig. 4 taken upon the line 6-7); Fig. 7 is a side view of a detail showingthe antifriction bearing between the members of the superheaterillustrated in Fig. 4; Fig. 8 is a perspective view of one of the antifriction rollers employed in the construction illustrated in Fig. 4; Fig. 9 is a side elevation of an alternate construe-- tion illustrating the manner of joining the J distributer and receiver of the superheater to allow for expansion and contraction; Fig. 10 is a front elevation of the construction illustrated in Fig. 9; Fig. 11. is a side elevation of an alternate construction of my invention; Fig. '12 is a front elevation of the 'constructlon illustrated in F 1g. 11; Fig. 13 is a detail of the joint-between the distributer and receiverillustrated in Figs. 11 and 12- showing another way of allowing for eX- pension and contraction; Fig. 14 is a sideelevationof an alternate construction; Fig. 15 is a front elevation of the construction illustrated in Fig. 14- and Fig. 16 is a section taken on the line c-c of Fig. 14. t In the drawings A represents part of alocomotive boiler. B the boiler flues, C'the smoke chamber. D the steam chests of .the locomotive, F the dry pipe. G the T head on the dry pipe in the smoke chamber, H my improved supe'rheater between the T head and steam chests and I the superheat-' ing steai'ii tubes whichlyaro connected with and form part ofthe su lrheiijier.

The entire superheater i one superheater J being connected with one s? double insform branch 2 ofthe T head and one of the steam.

a minim i2 motive and time other ii w branch I) oi the "i" ins-ad a 'ihesi: superlnaitera are similar in ronstrnelion and inrline dow i in a direct line from the T head to the steam ehest with. whiol'i they Conner-t. The Hanna-heater "l on one side of the smoke Cililllllltl curves out slightly to coirespond with the Ulli'YLi inwhich the ends of the hoiler lines ii are arranged in the line sheet. The opposite snperhoater hi. revers d in curvature for the same pur pose. These superheaters thus prodiie a (li rect conduit without doubling: hall: for satu rated steam from the holler toward the steam cheats. its the superheatem a e stantiall) similar in eonstruetion it will he understood in the following dearription that like ordinals refer to similar parts thereof. Each auperhmiter cousins o'l a distribute! l anda' reeeirer 5 whose initial mpacitios are the same throughout their lengths and respeibtire lower and upper extremities are closed. The open ends of the distrihuter and receiver are respectively jn'ned to a hranrh of the T head and a seat l? of a steam (heat h means ol hall joints 7 and H wliieh allow for expansion and eontraetion or movement ol the IHHlS without leakage. 'lhe distributer and l't-l'OlYLl are nieehanieally joined together transversely hr slip joints 9 no din-ed lrv inter-lurking: tongues and groores ill and i1 integral with Hillll parts. whieli allow free longitudinal movement hetwr-en them. (Hoe Fig. 3). lo thi manner universal movement a gn-rn'iilted hotween the parts to orerronie eakagre ol leain and per-- Hill the parts to he taken apart oi':nl i11 le l. Arranged in the holler air a plurality oi longitudinal lines l wliirh are larger in diameter than the ordinary lines 1: as many ol' the llllih ll being provided as inn be desiralile lor the purposr l'or lili'l. they are intended. in thew lines i? sn ierlieating tuhes i are rarried hall; and l )1'lli.:\ llo\\'n their andhr-ing' hrougjhl out and'i-onne -led in multiple wilh a dialrihuier and reec-irer. Halurafed Hit-Hill is illllH i li\'tl\l l the di. irihuler lo a luhe whirls Hlllltl'lllillb ihe steam and delivers: it to the reveirei'. The frames ol the dislrihuler and rereix'er are [owned wilh poelieta i i in ihe walla of \\'lli\"ll the ends ol' the tubes are rolled or headed to form light :aleazn joints. ()piar inns ll eonl'aining: threaded plugs ii? in the endn is each sugar-heating tube between its formed with a loop in which proje. in the smoke chamber. The method 01 soaring;- the ends o. the anperheating tubes to the casings o: the super-heater is lllllfiililjfl'l. in Fig. 3 of the drawings. The shape and form of the (lintrihuters and rereivers lea the front ends of the tubes in the. 513:0.(0- rhamher clean allow a good draft on the iire and do not .iwllhlfe draftthrough the fines of theboiler.

it is desirable to equalize the SUEHHI pressure in super-heaters and for this purpo, I bridge a eoi'niertion between the lower ends oi" the rtafeirera 5 in means of the tr: narerso pipe 17 the ends oi whirh areronnected. in the l'fasings with plugged openings 1S opposite their undo in the some manner as in tho ronstruetion for fastening; the ends of tho superheating tubes. in ronstructing my inrention l contemplate various moditieations within the scope thereofi a Few of whieh are illustrated by the aeeompanving drawings.

In Figs. l to T the joint between the dis?' trihuter and reeeirer is nrodneed h a link 3 secured by bolts 26 passing through lianges 27 at or near the ends oi said parts and journals Q8 aeh ol whieh is 'n'odi'med h an antitrietion roller 29 working in guides 3U hetween the members. By this; ronstrurtion 't'rietion is reduced between the llltllllltl'H oi the :-:nperheate' and expansion and contraction eonil'nnfiatial.

in l ig's. f and 1.0 the distrihuter and reeeiver overlap side-wise instead of being superimposed as in the preferred eonstrnotion. These members are joined by bolts ii pasaing loosely through transverse pas- :iay mwaya 32 and sealed at or near their endn upon the eaaing'a in eonieal washm's '33 whieh'ronstrurtion allows for expansion. eontian-tion and movement oi the parts.

in l ig's. 11 lo 13 the rereirers are ronnei-led at their upper ends to equalize pressure ol' steam whieh is admitted to the oppov\ile steam ehesls. i\ doulile T head Ill vrmided l'or forming the ronner'tion hoth .hetween the upper ends ol the rereivers and hetwren the dry pipe 1* and (llHi'l'll l|t-kI-'Z%.

'ihe lower end ol' eaeh (ll. il'il)lll'(l' seeured lo the rorresponding reeeirer h a bolt 35 passing through a alotted opening Ill in lugs I17 whieh are integral with the eaaingz's or' the parts -I and 3. This fastening: allows for mpansion. eontraetion and movement lwiween the parts.

l n lf i gnll to H' the rereirer is shown liil'urratwl. the dislrihuter l)(lll $,f held and guided helwla-n the hil urration 35 h) an inlerlorhing tongue and groore runner-lion 35) whirh allows l'or expansion. eontraelion and niorrni-enl' ol' the parts.

in aeeordaiwe with the patent statutes l have deserihed the prinviplea oi" operation of my inruntion together with tho ang -r1 tus which I now consider to represent the best embodiment thereof but I desire to have it understood that tl1e construct'ion' shown is only illustrative and that the inclaims.

ilaving described my invention, whatI claim as new and desire to protect byLetters Patent is l. A steam superheater, comprising,'in combination with a boiler, boiler fines, smoke chamber and steam chest, a distributer connected with the steam space in the boiler, a receiver connected with said steam chest, said distributor and receiver being connected by an equalizing joint and a plurality of superheating steam tubes connected in multiple withsaid distributer and receiver and arranged to be heated by heat egressing-through the boiler tubes, said parts being so constructed and arranged that steam from the boiler passes in the shortest path to the superheating tubes and from said tubes to the steam chest; whereby a maximum heating exposure is produced His upon said tubes with minimum heat loss.

2. A steam superheater, comprising, in combination, with a boiler, boiler. fines, smoke chamber and steam chest, a distributer connected with the steam space in the boiler, a receiver connected with said steam chest, said distributer and receiver overlapping each other and joined by an equalizing joint and a plurality of superheating steam tubes connected in multiple with said distributer and heater and arranged to be heated by heat'egressing through said boiler fines. I

3. A steam superheater, comprising, in

combination, with a boiler, boiler fines,

smoke chamber and steam chest; a distributer connected with the steam space in said boiler, a receiver connected with said steam chest, said distributor and receiver overlap ping each other and joined together by an equalizing joint insaid'smoke chamber and forming a substantially straight line of conduit for steam and a plurality oi superheating tubes detachably connected in multiple with said distributor and receiver and exposed to the action of heat egressing through said boiler fines.

4. A. steam superheater, comprising, in combination with a boiler,,boiler fiues, smoke chamber and steam chest, a distributer connected with the steam space in said boiler, a receiver connected with said steam chest, said distributor and receiver forming a direct line of conduit for steam and a plurality of sup'erheatingtubes connecting in multiple with said distributer and receiver and exosed to the effective action of heat egressinnthrough said boiler fiues, said receiver and distributer being joined together and to said boilerand steam chest by? equalizing m nis w ,v 5. A steam superheater, comprising,fin combination with a boiler, pairs of 'distributers and receivers having superheating elements associated therewith and adaptedto be exposed to the action of-heat egressing through the fiues of the boiler and {an equalizing steam connection between snareceivers. I i 6. A steam superheater, comprising, in combination with a boiler, pairs of distributers and receivers having superheating elements associated therewith and exposed to the action of heat passing through theboiler fiues, said distributers being connected with the steam space in said boiler, the distributor and receiver ofeach of said pairs-being movably connected together and an equalizing,

steam connection bridged between said receivers. i

7. A steamv superheater, comprising, in

combination with a boiler and its flues, smoke chamber and a steam chest, a pair of dlstributers connected with the steam space in said boiler, a receiver element m'ovably a plurality of receivers associated with said distributer and connected with said steam chests, superheating elements associated with said parts and adapted to be exposed to the action of heat egressi'ng through said boiler fines and an equalizingsteam connection between said receivers.

93 A steam superheater, comprising, in

combination with a boiler, boiler fines, smoke chamber and steam chests, a distributer connected with. the steam space in said boiler,

a receiver connected with said steam chests, superheating elements associated with said parts and adaptedto be exposed to the effective action of heat egressing through said boiler fines, said distributer and receiver being independently supported.

10. In a super-heater for a steant boiler, a distributer adapted to receive li.ve st'etm vfrom the boiler, a receiver movably as '0- ciated with said distributer and adapted to allow for longitudinal expansion and contraction ofsaid associated parts and a plurality of superheating with said distribut'er and receiver and adapted to be exposedto' the action of heat.

11. A- superheate'r for steam boilers comprising a header consisting of a pair of independent header. sections vertically arranged, one in front of the other, one of said sections elements associated having means for connection with a steam supply and provided with a saturated steam CI'MUHbQY, the. othr of said sections having lnvanstor connection with the cylinder and I'H'OVidUki with a superheated steam chamber, superheatui' tubes having their ends conne0ted resgmctiveiy with said saturated steam chamber and with said su ierheated steam cha iheir, and siip-joint connections between said sections to compensate for their r la- .1 five expansion and contraction.

In testimon whereof,- i have signed my name to this specification, in the presence of two subscribing W tnesses.

w ILLIS L. RILE \V itn:

H. L. Fiscn'nin F. G. BRADBJURY. 

